A metal cutting machine tool based on hydraulic cutting machine

Abstract

The present invention discloses a metal cutting machine tool based on a hydraulic cutting machine, and relates to the technical field of cutting machines. The present invention comprises a processing table, a U-shaped frame is fixed on the top of the processing table, a hydraulic cylinder is fixed on the top of the U-shaped frame, a cutting knife is fixed on the bottom of the telescopic end of the hydraulic cylinder, the cutting knife is composed of a knife holder and a tool body, and the tool body is fixed at the bottom of the knife holder, and positioning rods are penetrated and slidably installed at the four corners of the top surface of the knife holder of the cutting knife, and a U-shaped plate is fixed at the bottom of the positioning rod on the left and right sides, and a spring is provided between the U-shaped plate and the knife holder of the cutting knife. The present invention drives a scraper to scrape away hard foreign matter on the surface of the metal material to be cut in the area below the cutting knife through the cooperation of the cutting knife, the U-shaped plate, the pressure roller, the U-shaped plate, and the slide plate, thereby avoiding the problem that after the cutting knife touches the hard foreign matter, the hard foreign matter will cause the cutting knife to wear more severely and shorten the service life of the cutting knife.

Description

Technical Field

[0001] The invention relates to the technical field of cutting machines, in particular to a metal cutting machine tool based on a hydraulic cutting machine. Background Art

[0002] Metal cutting machines are often used in the cutting of metal materials. Metal cutting machines are also called shearing machines and are indispensable equipment in some light industries. Metal cutting machines are machines that use the force of machine movement to pressurize the die to shear metal materials.

[0003] At present, metal cutting machines have the following problems: when there are hard foreign objects remaining on the surface of the metal material to be cut due to the processing environment, when the cutting knife of the metal cutting machine is cutting the metal material, after the cutting knife touches the hard foreign objects, the hard foreign objects will rub between the cutting knife and the metal material, causing the cutting knife to wear more severely and shorten the service life of the cutting knife. At the same time, it will also affect the cutting effect at the edge of the metal material after shearing. Therefore, we propose a metal cutting machine based on a hydraulic cutting machine. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a metal cutting machine tool based on a hydraulic cutting machine, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a metal cutting machine tool based on a hydraulic cutting machine, comprising a processing table, a U-shaped frame is fixed on the top of the processing table, a hydraulic cylinder is fixed on the top of the U-shaped frame, a cutting knife is fixed on the bottom of the telescopic end of the hydraulic cylinder, the cutting knife is composed of a knife holder and a knife body, and the knife body is fixed to the bottom of the knife holder, positioning rods are penetrated and slidably installed at the four corners of the top surface of the knife holder of the cutting knife, and the bottoms of the positioning rods on the left and right sides are fixed with U-shaped plates, springs are provided between the U-shaped plate and the knife holder of the cutting knife, a pressure roller is rotatably installed inside the U-shaped plate, a slide plate is slidably installed in the middle of the top surface of the U-shaped plate, a scraper is fixed to the bottom of the side of the slide plate close to the center of the U-shaped frame, and the slide plate is away from the center of the U-shaped frame The top of one side of the center is hinged to one end of a two-way telescopic rod, and the other end of the two-way telescopic rod is hinged to the outer wall of the knife holder of the cutting knife. A separation device for separating the sheared metal material is provided in the middle of the side of the U-shaped plate away from the center of the U-shaped frame, and a protective device for protecting the tool body of the cutting knife is provided below the knife holder of the cutting knife. The knife holder of the cutting knife will lean towards the U-shaped plate. When the U-shaped plate drives the pressure roller to contact the metal material to be cut, the U-shaped plate drives the scraper to contact the metal material to be cut through the slide plate. In the process of the knife holder of the cutting knife leaning towards the U-shaped plate, the knife holder of the cutting knife pushes the two-way telescopic rod to drive the slide plate to move in the direction away from the center of the U-shaped frame, and the slide plate drives the scraper to move with it, so that the scraper scrapes away the hard foreign matter on the surface of the metal material to be cut in the area below the cutting knife.

[0006] According to the above technical solution, the top of the scraper on one side away from the center of the U-shaped frame is fixedly connected to one end of the folding bag, and the other end of the folding bag is fixedly connected to the outer wall of the U-shaped plate. A plurality of air nozzles are evenly and equidistantly fixed on the outer wall of the scraper on one side away from the center of the U-shaped frame. The air nozzles are connected to the interior of the folding bag. At the same time, when the skateboard drives the scraper to move, the scraper drives the folding bag toward the U-shaped plate, and the scraper and the U-shaped plate squeeze the folding bag, and the air in the folding bag is ejected through the air nozzle, so that the air ejected from the air nozzle cleans the dust, fiber or other dirt adhered to the scraper.

[0007] The two L-shaped plates are fixed to the sides of the U-shaped plate, and the two L-shaped plates are slidably mounted on the top of the U-shaped plate on one side. A spring is provided between the L-shaped plate and the two hollow cylinders. The two T-shaped plug rods are slidably mounted inside the two hollow cylinders, and a spring is provided between the bottom surface of one side of the T-shaped plug rod and the top surface of the suction cup. The two resistance rods are respectively fixed to the bottom surface of one side of the two T-shaped plug rods close to each other. The side of the U-shaped plate away from the center of the U-shaped frame is an inclined surface. The resistance rod is located on the inclined surface movement trajectory of the U-shaped plate. When the slide moves away from the U-shaped plate, the resistance rod moves to the side of the U-shaped plate. When the slide plate drives the L-shaped inclined plate to move, the inclined surface of the L-shaped inclined plate pushes the resistance rod to drive the T-shaped plug rod to move upward, and the T-shaped plug rod extracts the air in the hollow cylinder and the suction cup, thereby generating negative pressure at the suction cup and adsorbing it on the surface of the metal material to be cut. Then, when the slide plate drives the L-shaped inclined plate to continue to move, since the suction cup is adsorbed on the surface of the metal material to be cut, the suction cup will limit the position of the L-shaped push rod through the hollow cylinder. At this time, the L-shaped inclined plate will compress the spring corresponding to the L-shaped push rod. When the cutting knife finishes cutting the metal material, the metal material becomes two pieces. In this process, the corresponding metal material adsorbed by the suction cup can be moved, and under the action of the spring force corresponding to the L-shaped push rod, the L-shaped push rod pushes the hollow cylinder and the suction cup away from the U-shaped frame, and the suction cup drives the sheared metal material to move synchronously, thereby making the two sheared metal materials move away from each other.

[0008] According to the above technical solution, the separation device also includes two elastic telescopic rods, two knocking rods, two U-shaped connecting rods, two semi-arc blocks, and two convex block plates. The two elastic telescopic rods are respectively fixed to the front side and the rear side of the top surface of the suction cup, one end of the two U-shaped connecting rods is respectively fixed to the top of the telescopic end of the two elastic telescopic rods, the two knocking rods are respectively fixed to the top of the other end of the U-shaped connecting rod, and the top of the knocking rod is in contact with the top surface of the suction cup, the two convex plates are respectively fixed to one side of the other end of the U-shaped connecting rod close to the center of the U-shaped frame, and the two semi-arc blocks are fixed to the U-shaped plate The top of the bump plate is fixed with a plurality of bumps at the bottom of the bump plate, and the semi-arc block is located on the bump movement trajectory of the bump plate. At the same time, when the suction cup moves away from the U-shaped frame, the suction cup drives the elastic telescopic rod to move, and the elastic telescopic rod drives the bump plate to move through the U-shaped connecting rod. The semi-arc block pushes the bump of the bump plate to drive the bump plate to move upward, and the bump plate drives the telescopic end of the elastic telescopic rod to stretch through the U-shaped connecting rod. At the same time, the U-shaped connecting rod drives the knocking rod away from the suction cup. When the semi-arc block does not push the bump of the bump plate, under the elastic force of the elastic telescopic rod, the elastic telescopic rod drives the knocking rod to knock the suction cup through the U-shaped connecting rod.

[0009] According to the above technical solution, the protective device includes a mouth-shaped folding curtain and two U-shaped fixed rods. The mouth-shaped folding curtain is fixed at the bottom of the cutting knife holder, and the mouth-shaped folding curtain is located outside the cutting knife tool body. The top surfaces of the two U-shaped fixed rods are respectively fixed at the bottom front side and the bottom rear side of the mouth-shaped folding curtain, and the bottom surfaces of the two U-shaped fixed rods are respectively fixed between two U-shaped plates. When the cutting knife is not in use, the mouth-shaped folding curtain will form protection on the outside of the cutting knife, thereby avoiding the problem of the cutting knife being damaged by collision with foreign objects. When the cutting knife moves downward, the cutting knife will pass over the mouth-shaped folding curtain and the mouth-shaped folding curtain will be compressed.

[0010] According to the above technical scheme, the protective device also includes two brush rollers, four one-way bearings, two protective liquid boxes, and two cotton blocks. The two protective liquid boxes are respectively fixed between the left side and the right side of the top surface of the two U-shaped fixed rods, and the two cotton blocks are respectively fixed at the bottom of the inner wall of the two protective liquid boxes. The top surface of the cotton block contacts the outer wall of the brush roller. The four one-way bearings are respectively fixed on the side of the two U-shaped fixed rods close to each other. The two brush rollers are respectively rotatably installed between the two one-way bearings arranged oppositely. The one-way bearings are used to limit the one-way rotation of the brush roller. At the same time, the cotton blocks absorb the protective liquid in the protective liquid box and smear it on the brush roller. Every time the cutting knife is lifted and moved upward, the cutting knife resists the brush roller and rotates, and the brush roller smears the protective liquid on the cutting knife. When the cutting knife moves downward and contacts the brush roller, the brush roller is restricted by the one-way bearings, so the brush roller will not rotate at this time, and the brush roller will not brush the protective liquid on the surface of the cutting knife.

[0011] The present invention provides a metal cutting machine tool based on a hydraulic cutting machine. It has the following beneficial effects:

[0012] (1) The present invention uses a cutting knife, a U-shaped plate, a pressure roller, a U-shaped plate, and a slide plate to drive a scraper to scrape away hard foreign matter on the surface of the metal material to be cut in the area below the cutting knife, thereby avoiding the problem that the hard foreign matter will cause the cutting knife to wear more severely and shorten the service life of the cutting knife after the cutting knife touches the hard foreign matter. At the same time, the slide plate, the scraper, the folding bag, the U-shaped plate, and the folding bag work together to drive the air nozzle to spray air to clean the dust, fiber or other dirt adhered to the scraper, thereby facilitating the subsequent surface maintenance of the scraper and avoiding the problem that the protective coating applied during the scraper maintenance operation cannot evenly cover the scraper surface.

[0013] (2) The present invention arranges a separation device so that the slide plate, U-shaped frame, I-shaped inclined plate, abutment rod, T-shaped plug rod, hollow cylinder, suction cup, and L-shaped push rod cooperate to drive the two pieces of metal materials after being sheared to move away from each other, thereby avoiding the problem that the two pieces of metal materials are in a close contact state just after being sheared, and the two pieces of metal materials wear the cutting knife during the lifting process of the cutting knife, resulting in damage to the cutting knife; at the same time, the suction cup, elastic telescopic rod, U-shaped connecting rod, convex block plate, and semi-arc block cooperate to drive the knocking rod to knock the suction cup, causing the suction cup to vibrate, thereby promoting the efficiency of the suction cup in driving the sheared metal materials to move away from each other.

[0014] (3) The present invention provides a protective device so that the mouth-shaped folding curtain forms a protection on the outside of the cutting knife, thereby preventing the cutting knife from being damaged by collision with foreign objects; at the same time, the cotton block, the protective liquid box, the brush roller, and the cutting knife cooperate to drive the brush roller to apply the protective liquid on the cutting knife, so that the protective liquid protects the cutting knife, thereby increasing the service life of the cutting knife. When the cutting knife moves downward and contacts the brush roller, the brush roller is restricted by the one-way bearing and will not rotate at this time. The brush roller will not apply the protective liquid on the surface of the cutting knife, thereby avoiding the problem that when the cutting knife cuts metal materials, the protective liquid adheres to the surface of the cutting knife and causes contamination to the metal material to be cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the present invention as a whole;

[0016] Figure 2 It is a partial structural schematic diagram of the present invention as a whole;

[0017] Figure 3 It is a partial bottom three-dimensional schematic diagram of the present invention as a whole;

[0018] Figure 4 is a schematic diagram of a separation device of the present invention;

[0019] Figure 5 It is a partial structural schematic diagram of the separation device of the present invention;

[0020] Figure 6 is a schematic diagram of the protective device of the present invention;

[0021] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at A.

[0022] In the figure: 1. processing table; 2. U-shaped frame; 3. hydraulic cylinder; 4. cutting knife; 5. separation device; 51. L-shaped push rod; 52. T-shaped plug rod; 53. hollow cylinder; 54. suction cup; 55. resistance rod; 56. several-shaped inclined panel; 57. elastic telescopic rod; 58. knocking rod; 59. U-shaped connecting rod; 510. semi-arc block; 511. convex block plate; 6. protective device; 61. mouth-shaped folding curtain; 62. U-shaped fixed rod; 63. brush roller; 64. one-way bearing; 65. protective liquid box; 66. cotton block; 7. positioning rod; 8. U-shaped plate; 9. pressure roller; 10. two-way telescopic rod; 11. slide plate; 12. scraper; 13. folding bag; 14. air nozzle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See also Figure 1-7 One embodiment of the present invention is: a metal cutting machine tool based on a hydraulic cutting machine, comprising a processing table 1, a U-shaped frame 2 is fixed on the top of the processing table 1, a hydraulic cylinder 3 is fixed on the top of the U-shaped frame 2, a cutting knife 4 is fixed at the bottom of the telescopic end of the hydraulic cylinder 3, the cutting knife 4 is composed of a knife holder and a tool body, and the tool body is fixed at the bottom of the knife holder, and positioning rods 7 are penetrated and slidably installed at the four corners of the top surface of the knife holder of the cutting knife 4, and U-shaped plates 8 are fixed at the bottom of the left and right positioning rods 7, a spring is arranged between the U-shaped plate 8 and the knife holder of the cutting knife 4, and a pressure roller 9 is rotatably installed inside the U-shaped plate 8 A slide plate 11 is slidably installed in the middle of the top surface of the U-shaped plate 8, and a scraper plate 12 is fixed to the bottom of the side of the slide plate 11 close to the center of the U-shaped frame 2. The top of the side of the slide plate 11 away from the center of the U-shaped frame 2 is hinged to one end of a two-way telescopic rod 10, and the other end of the two-way telescopic rod 10 is hinged to the outer wall of the tool holder of the cutting knife 4. Through the arrangement of the above structure, the scraper plate 12 can scrape away hard foreign matter on the surface of the metal material to be cut in the area below the cutting knife 4, thereby avoiding the problem that the hard foreign matter will cause the cutting knife 4 to wear more severely and shorten the service life of the cutting knife 4 after the cutting knife 4 touches the hard foreign matter.

[0025] The top of the scraper 12 on one side away from the center of the U-shaped frame 2 is fixedly connected to one end of the folding bag 13, and the other end of the folding bag 13 is fixedly connected to the outer wall of the U-shaped plate 8. A number of air nozzles 14 are evenly and equidistantly fixed on the outer wall of the scraper 12 on one side away from the center of the U-shaped frame 2. The air nozzles 14 are connected to the interior of the folding bag 13. Through the arrangement of the above structure, the air sprayed by the air nozzles 14 can clean the dust, fiber or other dirt adhered to the scraper 12, thereby facilitating the subsequent surface maintenance operation of the scraper 12 and avoiding the problem that the protective coating applied during the scraper 12 maintenance operation cannot evenly cover the surface of the scraper 12.

[0026] When in use, place the metal material to be cut on the processing table 1, start the hydraulic cylinder 3, and the telescopic end of the hydraulic cylinder 3 pushes the cutting knife 4 to move downward. The cutting knife 4 will first drive the U-shaped plate 8 to move downward through the positioning rod 7, and the U-shaped plate 8 drives the pressure roller 9 to move downward and press the metal material to be cut on the processing table 1 to avoid warping of the metal material to be cut, which will cause cutting errors of the metal material to be cut. Then, when the telescopic end of the hydraulic cylinder 3 continues to push the cutting knife 4, the cutting knife 4 will cut the metal material to be cut, and the knife holder of the cutting knife 4 will lean against the U-shaped plate 8. When the U-shaped plate 8 drives the pressure roller 9 to contact the metal material to be cut, the U-shaped plate 8 drives the scraper 12 to contact the metal material to be cut through the slide plate 11. In the process of the knife holder of the cutting knife 4 leaning against the U-shaped plate 8, the knife holder of the cutting knife 4 pushes the two-way telescopic rod 10 to drive the slide plate 11 moves in the direction away from the center of the U-shaped frame 2, and the slide plate 11 drives the scraper 12 to move along, so that the scraper 12 scrapes away the hard foreign matter on the surface of the metal material to be cut in the area below the cutting knife 4, thereby avoiding the problem that the hard foreign matter will cause the cutting knife 4 to wear more severely and shorten the service life of the cutting knife 4 after the cutting knife 4 touches the hard foreign matter. At the same time, when the slide plate 11 drives the scraper 12 to move, the scraper 12 drives the folding bag 13 to lean against the U-shaped plate 8, and the scraper 12 and the U-shaped plate 8 squeeze the folding bag 13, and the air in the folding bag 13 is ejected through the air nozzle 14, so that the air ejected by the air nozzle 14 cleans the dust, fiber or other dirt adhered to the scraper 12, thereby facilitating the subsequent surface maintenance operation of the scraper 12 and avoiding the problem that the protection applied during the maintenance operation of the scraper 12 cannot be evenly covered on the surface of the scraper 12.

[0027] See also Figure 1-7 In another embodiment of the present invention, based on the above embodiment, a separation device 5 for separating the sheared metal material is provided in the middle of one side of the U-shaped plate 8 away from the center of the U-shaped frame 2, and a protective device 6 for protecting the tool body of the cutting knife 4 is provided below the knife holder of the cutting knife 4;

[0028] The separation device 5 includes two L-shaped push rods 51, two T-shaped plug rods 52, two hollow cylinders 53, a suction cup 54, two abutment rods 55, and a truncated inclined plate 56. The truncated inclined plate 56 is fixed to the side of the slide plate 11 away from the center of the U-shaped frame 2. The two L-shaped push rods 51 are respectively slidably mounted on the top of the U-shaped plate 8 on one side, and a spring is provided between the L-shaped push rods 51 and the truncated inclined plate 56. The two hollow cylinders 53 are respectively fixed to the side of the two L-shaped push rods 51 away from the center of the U-shaped frame 2. The suction cup 54 is fixed to the bottom of the two hollow cylinders 53. The two T-shaped plug rods 52 are respectively slidably mounted on the two hollow cylinders 5 3, and a spring is provided between the bottom surface of one side of the T-shaped plug rod 52 and the top surface of the suction cup 54, two abutment rods 55 are respectively fixed to the bottom surfaces of one side of the two T-shaped plug rods 52 close to each other, and the side of the several-shaped inclined plate 56 away from the center of the U-shaped frame 2 is arranged as an inclined surface, and the abutment rod 55 is located on the inclined surface movement track of the several-shaped inclined plate 56. Through the arrangement of the above structure, the suction cup 54 drives the sheared metal materials away from each other, thereby avoiding the problem that the two pieces of metal materials are in a close contact state just after being sheared, and the two pieces of metal materials wear the cutting knife 4 during the lifting process of the cutting knife 4, resulting in damage to the cutting knife 4.

[0029] The separation device 5 also includes two elastic telescopic rods 57, two knocking rods 58, two U-shaped connecting rods 59, two semi-arc blocks 510, and two protrusion plates 511. The two elastic telescopic rods 57 are respectively fixed to the front side and the rear side of the top surface of the suction cup 54, one end of the two U-shaped connecting rods 59 is respectively fixed to the top of the telescopic end of the two elastic telescopic rods 57, the two knocking rods 58 are respectively fixed to the top of the other end of the U-shaped connecting rod 59, and the top of the knocking rod 58 is in contact with the top surface of the suction cup 54, the two protrusion plates 511 are respectively fixed to one side of the other end of the U-shaped connecting rod 59 close to the center of the U-shaped frame 2, the two semi-arc blocks 510 are both fixed to the top of the U-shaped plate 8, and a plurality of protrusions are fixed to the bottom of the protrusion plate 511. The semi-arc block 510 is located on the protrusion movement trajectory of the protrusion plate 511. Through the arrangement of the above structure, the knocking rod 58 knocks the suction cup 54, and the suction cup 54 vibrates, thereby promoting the efficiency of the suction cup 54 driving the sheared metal materials away from each other.

[0030] The protective device 6 includes a mouth-shaped folding curtain 61 and two U-shaped fixed rods 62. The mouth-shaped folding curtain 61 is fixed at the bottom of the cutting knife 4 tool holder, and the mouth-shaped folding curtain 61 is located outside the tool body of the cutting knife 4. The top surfaces of the two U-shaped fixed rods 62 are respectively fixed at the bottom front side and the bottom rear side of the mouth-shaped folding curtain 61, and the bottom surfaces of the two U-shaped fixed rods 62 are respectively fixed between the two U-shaped plates 8. Through the arrangement of the above structure, the mouth-shaped folding curtain 61 will form a protection outside the cutting knife 4, thereby avoiding the problem that the cutting knife 4 is damaged by collision with foreign objects.

[0031] The protective device 6 also includes two brush rollers 63, four one-way bearings 64, two protective liquid boxes 65, and two cotton blocks 66. The two protective liquid boxes 65 are respectively fixed between the left side and the right side of the top surface of the two U-shaped fixed rods 62. The two cotton blocks 66 are respectively fixed to the bottom of the inner wall of the two protective liquid boxes 65. The top surface of the cotton block 66 contacts the outer wall of the brush roller 63. The four one-way bearings 64 are respectively fixed on the side of the two U-shaped fixed rods 62 close to each other. The two brush rollers 63 are respectively rotatably installed between the two one-way bearings 64 arranged opposite to each other. The outside of the brush roller 63 is provided with a sponge layer. The one-way bearings 64 are respectively fixed to the side of the two U-shaped fixed rods 62 close to each other. The two brush rollers 63 are respectively rotatably installed between the two one-way bearings 64 arranged opposite to each other. The outside of the brush roller 63 is provided with a sponge layer. The bearing 64 is used to limit the one-way rotation of the brush roller 63. Through the arrangement of the above structure, the brush roller 63 applies the protective liquid to the cutting knife 4, so that the protective liquid protects the cutting knife 4, thereby increasing the service life of the cutting knife 4. At the same time, through the arrangement of the above structure, the brush roller 63 is restricted by the one-way bearing 64. At this time, the brush roller 63 will not rotate, and the brush roller 63 will not apply the protective liquid on the surface of the cutting knife 4, thereby avoiding the problem that when the cutting knife 4 cuts the metal material, the protective liquid adheres to the surface of the cutting knife 4 and causes contamination to the metal material to be cut.

[0032] When in use, when the slide plate 11 moves away from the center of the U-shaped frame 2, the slide plate 11 drives the shaped inclined plate 56 to move along, and the inclined surface of the shaped inclined plate 56 pushes the contact rod 55 to drive the T-shaped plug rod 52 to move upward, and the T-shaped plug rod 52 extracts the air in the hollow cylinder 53 and the suction cup 54, so that negative pressure is generated at the suction cup 54 and adsorbed on the surface of the metal material to be cut. Then, when the slide plate 11 drives the shaped inclined plate 56 to continue to move, the suction cup 54 adsorbs on the metal material to be cut. The surface of the L-shaped push rod 51 is formed by the suction cup 54, so the suction cup 54 will limit the position of the L-shaped push rod 51 through the hollow cylinder 53. At this time, the inclined plate 56 will compress the spring corresponding to the L-shaped push rod 51. When the cutting knife 4 completes cutting of the metal material, the metal material is divided into two pieces. In this process, the corresponding metal material adsorbed by the suction cup 54 can be moved. Under the elastic force of the spring corresponding to the L-shaped push rod 51, the L-shaped push rod 51 pushes the hollow cylinder 53 and the suction cup 54 away from the U-shaped frame 2, and the suction cup 54 drives the sheared metal to move. The metal materials move synchronously, so that the two pieces of metal materials are separated from each other after being sheared, thereby avoiding the problem that the two pieces of metal materials are in a close contact state just after being sheared, and the two pieces of metal materials wear the cutting knife 4 during the lifting process of the cutting knife 4, resulting in damage to the cutting knife 4; at the same time, when the suction cup 54 is away from the U-shaped frame 2, the suction cup 54 drives the elastic telescopic rod 57 to move, and the elastic telescopic rod 57 drives the protruding plate 511 to move through the U-shaped connecting rod 59, and the semi-arc block 510 pushes the protruding block of the protruding plate 511 to drive the protruding block The block plate 511 moves upward, and the protrusion plate 511 drives the telescopic end of the elastic telescopic rod 57 to stretch through the U-shaped connecting rod 59. At the same time, the U-shaped connecting rod 59 drives the knocking rod 58 away from the suction cup 54. When the semi-arc block 510 does not push the protrusion of the protrusion plate 511, under the elastic force of the elastic telescopic rod 57, the elastic telescopic rod 57 drives the knocking rod 58 to knock on the suction cup 54 through the U-shaped connecting rod 59, and the suction cup 54 vibrates, thereby promoting the efficiency of the suction cup 54 in driving the sheared metal materials away from each other.

[0033] At the same time, when the cutting knife 4 is not in use, the mouth-shaped folded curtain 61 will form a protection outside the cutting knife 4, thereby preventing the cutting knife 4 from being damaged by collision with foreign objects. When the cutting knife 4 moves downward, the cutting knife 4 will pass over the mouth-shaped folded curtain 61, and the mouth-shaped folded curtain 61 will be compressed; at the same time, the cotton block 66 absorbs the protection liquid in the protection liquid box 65 and smears it on the brush roller 63. Every time the cutting knife 4 is lifted and moved upward, the cutting knife 4 resists the brush roller 63 and rotates, and the brush roller 63 smears the protection liquid on the cutting knife 4, so that The protective liquid is used to protect the cutting knife 4, thereby increasing the service life of the cutting knife 4. When the cutting knife 4 moves downward and contacts the brush roller 63, the brush roller 63 is restricted by the one-way bearing 64, and the sponge layer outside the brush roller 63 slips on the surface of the cutting knife 4. At this time, the brush roller 63 will not rotate, and the brush roller 63 will not apply the protective liquid on the surface of the cutting knife 4, thereby avoiding the problem that when the cutting knife 4 cuts metal materials, the protective liquid adhering to the surface of the cutting knife 4 will cause contamination to the metal material to be cut.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal cutting machine tool based on a hydraulic shearing machine, comprising a processing table (1), characterized in that: A U-shaped frame (2) is fixed on the top of the processing table (1), a hydraulic cylinder (3) is fixed on the top of the U-shaped frame (2), a cutting knife (4) is fixed on the bottom of the telescopic end of the hydraulic cylinder (3), the cutting knife (4) is composed of a knife frame and a knife body, and the knife body is fixed on the bottom of the knife frame, positioning rods (7) are penetrated and slidably installed at the four corners of the top surface of the knife frame of the cutting knife (4), and U-shaped plates (8) are fixed on the bottom of the left and right positioning rods (7), a spring is provided between the U-shaped plate (8) and the knife frame of the cutting knife (4), a pressure roller (9) is rotatably installed inside the U-shaped plate (8), and the U-shaped A slide plate (11) is slidably mounted in the middle of the top surface of the plate (8); a scraper plate (12) is fixed to the bottom of a side of the slide plate (11) close to the center of the U-shaped frame (2); a top of a side of the slide plate (11) away from the center of the U-shaped frame (2) is hinged to one end of a bidirectional telescopic rod (10); the other end of the bidirectional telescopic rod (10) is hinged to the outer wall of a knife holder of a cutting knife (4); a separation device (5) for separating sheared metal materials is arranged in the middle of a side of the U-shaped plate (8) away from the center of the U-shaped frame (2); and a protective device (6) for protecting a tool body of the cutting knife (4) is arranged below the knife holder of the cutting knife (4); The separation device (5) comprises two L-shaped push rods (51), two T-shaped plug rods (52), two hollow cylinders (53), a suction cup (54), two abutment rods (55), and a truncated inclined plate (56). The truncated inclined plate (56) is fixed to a side of the slide plate (11) away from the center of the U-shaped frame (2). The two L-shaped push rods (51) are respectively slidably mounted on the top of the U-shaped plate (8) on one side, and a spring is provided between the L-shaped push rods (51) and the truncated inclined plate (56). The two hollow cylinders (53) are respectively fixed to a side of the two L-shaped push rods (51) away from the U-shaped The suction cup (54) is fixed to the bottom of the two hollow cylinders (53) on one side of the center of the frame (2), the two T-shaped plug rods (52) are respectively slidably installed inside the two hollow cylinders (53), and a spring is provided between the bottom surface of one side of the T-shaped plug rod (52) and the top surface of the suction cup (54), the two abutment rods (55) are respectively fixed to the bottom surface of one side of the two T-shaped plug rods (52) close to each other, the side of the U-shaped inclined plate (56) away from the center of the U-shaped frame (2) is arranged as an inclined surface, and the abutment rod (55) is located on the inclined surface movement track of the U-shaped inclined plate (56); The separation device (5) further comprises two elastic telescopic rods (57), two knocking rods (58), two U-shaped connecting rods (59), two semi-arc blocks (510), and two convex plates (511), wherein the two elastic telescopic rods (57) are respectively fixed to the front side and the rear side of the top surface of the suction cup (54), one end of the two U-shaped connecting rods (59) are respectively fixed to the top of the telescopic ends of the two elastic telescopic rods (57), the two knocking rods (58) are respectively fixed to the top of the other end of the U-shaped connecting rod (59), and the top of the knocking rod (58) is in contact with the top surface of the suction cup (54), the two convex plates (511) are respectively fixed to one side of the other end of the U-shaped connecting rod (59) close to the center of the U-shaped frame (2), and the two semi-arc blocks (510) are both fixed to the top of the U-shaped plate (8); A plurality of bumps are fixed to the bottom of the bump plate (511), and the semi-arc block (510) is located on the bump movement track of the bump plate (511).

2. A metal cutting machine tool based on a hydraulic cutting machine according to claim 1, characterized in that: The top of the scraper (12) on one side away from the center of the U-shaped frame (2) is fixedly connected to one end of the folding bag (13), and the other end of the folding bag (13) is fixedly connected to the outer wall of the U-shaped plate (8). A plurality of air nozzles (14) are evenly and equidistantly fixed on the outer wall of the scraper (12) on one side away from the center of the U-shaped frame (2), and the air nozzles (14) are connected to the interior of the folding bag (13).

3. A metal cutting machine tool based on a hydraulic cutting machine according to claim 2, characterized in that: The protective device (6) comprises a mouth-shaped folding curtain (61) and two U-shaped fixed rods (62); the mouth-shaped folding curtain (61) is fixed to the bottom of the cutting knife (4) tool holder, and the mouth-shaped folding curtain (61) is located outside the tool body of the cutting knife (4); the top surfaces of the two U-shaped fixed rods (62) are respectively fixed to the bottom front side and the bottom rear side of the mouth-shaped folding curtain (61); and the bottom surfaces of the two U-shaped fixed rods (62) are respectively fixed between the two U-shaped plates (8).

4. A metal cutting machine tool based on a hydraulic cutting machine according to claim 3, characterized in that: The protection device (6) further comprises two brush rollers (63), four one-way bearings (64), two protective liquid boxes (65), and two cotton blocks (66); the two protective liquid boxes (65) are respectively fixed between the left side and the right side of the top surface of the two U-shaped fixed rods (62); the two cotton blocks (66) are respectively fixed to the bottom of the inner wall of the two protective liquid boxes (65); the four one-way bearings (64) are respectively fixed to the sides of the two U-shaped fixed rods (62) close to each other; and the two brush rollers (63) are respectively rotatably mounted between the two one-way bearings (64) arranged opposite to each other.

5. A metal cutting machine tool based on a hydraulic cutting machine according to claim 4, characterized in that: The top surface of the cotton block (66) contacts the outer wall of the brush roller (63), and the one-way bearing (64) is used to limit the one-way rotation of the brush roller (63).

Images